<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
 <div id="app">
     <div>{{msg}}</div>
     <div>{{msg + '-----' + 123}}</div>
 </div>
 <script src="../vue/vue.js"></script>
 <script>
     var vm = new Vue ({
         el: '#app',
         data: {
             msg:'hello Vue'
         }
     });
 </script>
</body>
</html>